You can always lengthen the cables that come in the kit, which is made to go from the back of the in-dash radio to the left side of the glove box. If the jack is mounted where the DSC etc buttons are, then the cord gets in the way of the shifter. One guy mounted it in the front of the little rectangular (toll token?) box behind the cupholders, but said the clearances to the cupholders were very tight but do-able.
If you have the Nav system, they also have a kit for that with a different jack.
If it wasn't for the special jacks, you could do it yourself for about $4. $1.69 for the Mini in-panel stereo jack, 3 wires about 2' long, some solder, shrink tubing, and the connectors.