Good guide. Only need to remove a few of the screws from the headunit to get bottom cover off, some were unnecessary. I didn't cut the traces on the circuit board as when tested with the 3.5mm cable I soldered on there was no interference noise, just crystal clear high quality audio, very impressed. The only tiny gripe with this hack is the tape deck making noise when you select it. Tried desoldering the deck mechanism motor and also the reel motor but unfortunately it just won't work either or, be great if it was completely silent operation. Now waiting delivery of a belkin usb charger and ipod 3.5mm/usb y cable to convert the whole thing to one ipod cable and an ipod touch in box above head unit. I will dismantle the belkin cig charger and solder a cable inside to it which will be behind dash and tapped into accessory socket feed. Will post pics soon and maybe a mini guide if it's worth it.
