what do i do it it is the power mosfet? is the amp just toast?
You will have to take the amp apart, desolder and remove burnt fets, buy a new set, which are rather cheap, then solder them in. or you could send it to someone, but thats usually about $100..
But do some more troubleshooting first. If your thinking its the remote wire and you know you have power on the main cable and a decent ground, just take a small wire and connect it from the Positive amp terminal to the Remote terminal. the amp should kick on if thats the problem. And if not then take the amp out and remove the back cover plate, take a good picture or two of the insides then post them up here and me or someone else will tell you whats wrong and tell you what you need to do to fix it.
Toreador Red 05' FX4
4.0 4x4 A/Tran Ext.Cab Daily Driver. Nomads, BFG M/T's
Alpine 9857, JBL MS-8 DSP, US Acoustics 2x80w & 2x100w, Vifa 1" XT25 Dual Ring Radiator Tweeters 3k+ 24db slope, Dayton Audio 7" RS180-4 Mid-woofers 100Hz-3k 24db slope, 500w rms Kenwood Class-D Mono - JBL 10" GTO1014 Sealed. 100Hz- 12db slope