etl, as a matter of fact, most vehicles have good enough wiring to handle 4-channel power...

the only time its really necessary to run new wires is if the wires are a small gauge, which the VX has standard gauge wire (and mine was in pretty good shape)...im pretty confident that they will perform really well with a 4-channel...

ill also have to post some pics of my rear speakers im getting set up
im trying to get really creative with them...

i've decided that i dont like the location of the stock rear speakers so im moving them to behind the headrests....i actually bought some badarse 4x6 infinity 2 ways and some nice boxes to build them into...
ill get some pics of those up later