In the interest of sharing ideas and keeping a thread I think can provide some useful information, this is the first of many random and unprompted tips to come for those scanning through for info or a quick read. Profile brand amps are solid aluminum and in my opinon the best value for the money you can get in an amp. if screwed in properly, they'll survive the most jarring trails with ease, as well has having your tow chains and boots hit em hard. Plug an Mp3 player directly into its RCA jacks with a simple adapter, link it to some marine rated speakers, and now you have a system that will never skip due to jarring or impact, survives the elements, and doesnt involve expensive and overly priced headunits and "name brand" audio equipment for your trail ride. The best place to find profile amps as well as polk speakers (with their legendary resistance to the elements) is crutchfield.com
Addition to this comment based on later protests: The Ipod, owner of one of the most powerful amplifiers in the MP3 player world, has a maximum battery output of 3.7 volts. Given that high end head units pre-amp outputs are 3 to 5 volts and many amps feature gain adjustments to accomodate up to six volts, using a headphone minijack to stereo rca cable (simply use splitters to establish four channel sound) it would be difficult to burn out your amp's inputs on purpose with an ipod or any other mp3 player, much less on accident. just remember that charging the i pod while its plugged in will create a feedback loop (it'll whine really loud and be obnoxious) in many configurations and do NOT amplify the signal from the ipod in anyway prior to its reaching the amp, unless it is by plugging it in to an appropriate aux input on your head unit.
Last edited by bluejunior; 01-27-2009 at 02:45 PM.