Hi, hope someone can help. i've bought a few bits from andy mac to install 6.5" rear speakers to my S3. i want to keep the stock HU (upgrade at a later date) i just wanted to make sure the way im doing it is right. im using the red connection that was plugged into my non bose sub and using the remote on and pre-outs to run an amp. however i have 2 amps, one for the 6.5" and one for the sub. so can i run 2 pre-outs from this one plug? i have also run, 2x rca leads from the HU to the boot ready for when i upgrade the HU, so once i have a new HU this wont be a problem. another question not really related, i have a IO play (hand free and ipod connection) installed and at the moment because the standard Audi system is half amped my io play only works through the front speakers, is there anyway i can get it to run throught them all now that im removing the audi half amped stuff and installing my own?