[spaceman2844]

Just finished my DIY install.

Audison 8.9 amp (didn't need the ASP module), Audison Voce 2-way front components and passive crossovers with MDF speaker mounts, Eton USB10 active subwoofer, and retained existing Volvo co-axial speakers in rear doors.

Did the upgrade in stages over several weekends - trickiest part was fitting the Voce tweeters into the existing speaker housings.

All speaker wiring was achieved my modifying a Parrot bluetooth speaker adaptor harness to the rear of the underseat Volvo amplifier, this meant that I didn't need to splice into any of the existing speaker wiring (with the exception of the speakers in the front door). However required a fair amount of soldering to make up the new speaker input/output wiring looms etc.

Power supply for Audison amp and subwoofer was taken from the towbar electrics harness and fusebox in the cargo compartment so have a fused 30A and 15A supply respectively. This worked out well as amp and subwoofer are mounted in front of the spare wheel under the boot floor panel.

Fantastic improvement in sound quality and volume although I still need to fully tune the amp through the PC interface. I've got the speaker timings correct but still need to fine tune the equaliser and filter curves for the speakers

I'll try to upload some photos soon, and happy to give any further details if anyone wants to try the same DIY upgrade route.

Thanks to St James for your original posts and recommendation which helped with the purchase decision. Enjoyed the DIY install but probably not for everyone...