Many thanks, Mattk. I visited your website - very impresssive, both the site and the audio mods.

A couple of Q's:

In your opinion, is it possible to turn the whole trunk into a decent bass enclosure (not necesarily just a sub-woofer) by simply changing the rear speakers for large magnet, roll-surround, polypropalene coned, low free-air resonance types and adding sound absorbing and/or anti-panel-resonance material, thus avoiding having to build the separate sub-enclosure? In regular audio (my speciality), if you have a full-range, floor standing speaker you don't need a subwoofer.

Also, I presume I could get a decent improvement by replacing the cheap paper speakers in the doors with similar quality units to the above with tweeters and X-over (separate or coaxial.)

BTW, is it easy to get the door panels off?

I would leave the electronics as is for now. I fear I do not have the time for your size of project!

Cheers,