ok I want to retain my factory radio with the AUX jack mod and add a powered subwoofer to my ride. but i have some questions:
1. other then splicin the crap out of the wires to put a line output converter in, what are my other options to add pre-outs
2. underseat vs. standalone box? pros and cons?
3. best affordable kits to add sub/amp wiring ?
any and all comments and suggestions welcome. im on a budget and i want to retain the factory head unit (in the event i have to sell) i would never do it tho.