Ive got a selection of car audio from previous car builds that id like to put to use in my C5. The main item being either a 10" or a 12" JL sub install. Ideally id like to remove the stock item in the rear quarter and replace with the 12" JL in some kind of box. I'm unsure how i would get it to fit and would be interested in seeing how people have integrated sub builds into their avants in particular. Ive got a phoenix gold tantrum amp to power the sub and an RNS-e head unit. I understand I'm going to need a pair of phono's and a line to the HU and a fused feed to the battery for the amp, but I'm also unsure how you connect that to the RNS as i don't seem to have any phono's on the back of the RNS and space is already tight behind there with an iPod kit and a nokia handsfree. The other option i have is to use 2x 10" subs, one in each rear quarter but i understand that will come at the cost of losing the CD changer, which I'm not overly keen about. Id also like to keep the spare wheel as this is the family barge and i can't imagine a worse scenario than being stranded with a flat tyre and having to tell the wife 'at least we can have some bass while we wait to be recovered!' So who runs what and how did you get it in?