Do Alpine amps work well in X5 or go JL?

[btrvalik]

I think I've read here that the electrical system of the X5 can be a little noisy due to all the computers etc. I think alpine should well since they make good gear and are often an OEM supplier to BMW. I'm planning to use the Alpine mrp-m350 mono amp to drive a sub. I'm also considering a JL Audio 250/1 but I'm not sure the extra cost is worth it. I've seen lots of good reviews for the Alpine on many car audio sites. The JL is twice the price and is probably a better piece overall...but it may be overkill for my needs. I'm not going to be driving it that hard. Anyone have experience with this amp in their X?