Other XC90 Problem: AUX solution (for older models up to 2007)

[Volvo Ocean Race]

Hi guys few months ago I solved finaly how to made AUX input
as owners of older than 2007 XC models didnt have AUX input.

This should apply to any 2003-2006 XC90

You will need experience soldering with small solder, you will need
1 simple Audio cable with 3,5mm plug for mobile phone, MP3 players
or similar audio memory cards readers ect...(players).

Cheapest solution as many modules on market prices are from 350 Euro
up to 580 Eur. For listening music in XC90? Crazy.

Here is good, cheapest, reliable and many months tested solution.
Lets start.

[Volvo Ocean Race]

Lift this cover in trunk.

Release two belts.


Than lift triangle up.

Than you can spot small black level push it and remove cover.


Ok this is for my car EU on the left side.


You can now spot REM module

Now remove FUSE nr. 6.

[Volvo Ocean Race]

Than pull covers of speakers and just pull left side *no need also right one.
You will find under the roof 2 covers plastic one, please pull it out with small screwdriver,
under you can find 2 torx. Simply pull out cover of radio GPS unit.

Remove connector of speakers. Push level down pull out connector.


Second instruction starting with removing left cover column and roof cover of radio unit.

When you remove last cover remove 2 plastic cover of plastic covering
inside ceiling (module of radio and antennas)
its 2 torx screw. Than you can pull left column side just PULL out no problems.



Remove the covers and the screws underneath for the rear headlining

Carefully pry off the panel at the rear edge. Use a plastic weatherstrip tool

Pull the rear edge of the panel downwards until the four clips on the top release

If the car has lighting in the panel, disconnect the connector

Pull the panel backwards to release it.


Carefully pull off the D-post panel. Start at the top edge then pull down until the three clips on the inside release. Do not damage the panel

Disconnect the connector on the D-post panel (if the car has a loudspeaker in the D-post, the connector is in the loudspeaker)

Remove the panel by pulling upwards slightly and unhooking it from the side panel.


Than take care before you pull everything out to remove all screws 3 pcs.
cables and connectors especially optical orange one...
Photo show exactly what to do.

[Volvo Ocean Race]

Remove the covers from the rear headlining panel. Unscrew the screws from inside the panels.

Carefully pry off the headlining panel at the rear edge using a plastic weatherstrip tool.

Grip the rear edge of the headlining panel. Pull the headlining panel down until all the clips on the inside release.

Applies to cars with three rows of seats

Disconnect the connector for the rear roof lighting. Pull the panel backwards.


Carefully pull off the top edge of the right-hand D-post panel. Continue down until the three clips have released.

For cars with D-post loudspeakers: disconnect the connectors for this loudspeaker.

Remove the right-hand D-post panel by pulling upwards slightly and unhooking it from the side panel.

You can spot complete unit. Very nice professional quality made in Japan of course by Mitsubishi.



You can remove 2 modules left one is GPS middle one is TMC module but to remove
it you need first to remove 2 screw and than middle module first than left GPS one
as GPS have two strange holders on left side. Just pull it out firmly.
Remove 3 screw holding complete unit be carefull to pull out brown antenna cable
from connections of antennas in middle of console.



Remove plastic cable tie.

[Volvo Ocean Race]

Than you can spot ORANGE cable ATTENTION THIS IS OPTICAL not bend or kink
just push level on connector and firmly pull it out.
The red one is power 12 V just pull it out.


Take care when you pulling out antenna system that you dont touch Air bags
and pull cables of aribags on the left side.


Pull out both modules. TMC and GPS.


This one is SAT antenna module.

[Volvo Ocean Race]

Than remove this marked torx to release complete unit from antenna board and support.


BEFORE REMOVING ATTENTION !!! PULL OUT antenna flat cable FIRST.
Pull black part of connector. NOT FOR FLAT CABLE !!! NOOOOOO !!!



Than remove all screws around box only the 3 holding together inside power transistors NOT.
You can saw 3 screw one by other...near number 2. sticking together. DONT REMOVE IT.

[Volvo Ocean Race]

Than slightly push up with screwdriver cover UP.DO NOT push screwd.too deep inside.

Voila Radio unit is open. VEry high quality components used for Volvo. Nice.




NOW CUT SMALL LINE ON BOARD marked with WHITE DOT from R9 going under the Electrolytic Condensator.
THis to prevent mixing of Radio signal with AUX one later. If you dont cut you will
have background sound of radio. Tested and confirmed. Cut this slightly with some
small screwdriver or scisors...not so deep.



Here marked with RED circle.

Check with zoom lens if small line is cut.

[Volvo Ocean Race]

You can use Female on one side 2 wires Cinch audio cable. On other side cut cinch and prepare
L and R audio signal wire to be soledered on board. Ground together.

[Volvo Ocean Race]

Now first put some tube for isolation of ground to not touch nothing in any case and sold first ground as photo show on this BIG POINT near this 2 Electrolytic Condensators.
C301 and C 872

Some boards are not the same !!! Please check if the board is the same like mine.




Than solder ON + under the 2 Electr. Cond. on the up side L signal and R signal wire.
If you see Electrolityc Condensators you can spot BLACK mark on one part (this is - negative)
and other not marked is + positive (where you need to sold signal wire.)

Maybe my red marking + - on top will disturbe you. DOnt look this RED markings I just mark it to know
which parts are. Photo show exactly that on the right side is + to solder one by one wire.
Take care to have small soldering head to not touch or destroy other small elements and not overheating nothing.



What we are going to do? Just solder Left and Right Audio signal with Ground to board. So simple. Cut R9 line (not resistor) on board to stop AM radio signal going through. Nothing Else.

[Volvo Ocean Race]

Use only small head of Weller or any soldering.



im suggesting before you place / start soldering wires on board use a little bit
solder on spots as this board is covered by tiny nail polish against moisture.
Touch all points with a little solder wire and than solder wires. Tested.