Verified answer

I had a 740 ( 1998) a few years ago and I did a big upgrade as well. I Originally went with a Kenwood single CD, but the quality from them has gone way downhill!! The biggest factor is speakers...on my 1998 I had 6 speaker slots to fill...so I went with 2 sets of Boston acoustics 5.25", then a Boston Acoustics component set in the rear deck. I powed them with 2 small 4 channel amps...Sony 3040, running the 4th channel to a pair of MTX 12" subs in the trunk. I went with a Sony Xplod head unit with a 6 CD changer, and the Ipod adapter, and a Alpine Active Crossover.

This is a nice clean set up...I was going for good sound and not to entertain the neighbourhood though!

wel for a great sound with decent volume, choose alpine or rockford fosgate or jl audio, alpine is cheaper than the rest an sounds real good. id choose just one brand and build a system around it.

Plenty of money, eh. Well here is my mental suggestion: http://icondealerservice.com/catalog/index.php?_a=...