I was considering to buy and aftermarket HU for the 225 and buy the ISO extension leads etc. but came across this guide on CS.net and i thought, why not give it a try??? I'll try and install it tomorrow, only thing left is to upgrade the rear speakers with some decent bookshelf ones and use the leads from the rear speakers to amplify them. Anyone got some tips for some decent bookshelf ones with some decent lows also anyone who tried the aux lead from the link? http://www.instructables.com/id/Aux-cable-installation-for-a-Cabasse-Auditorium-6C/?ALLSTEPS
I have the same stereo as in the description, so will let you know it it work. Also interested in the speaker upgrade's people have done here? Or bookshelf ones maybe the best option