Since the dash is out for a stereo install, I decided to add a second lighter jack.

That way I won't have to constantly unplug the radar detector to plug other stuff in. (And my Valentine plug didn't like the 280 lighter jack for some reason.

It's a "1601" jack at NAPA, cost, $7, plus a little effort to wire.

Ideally you want one jack that's always powered, and one that switches with ignition. That way your radar detector doesn't stay on in the parking lot, but you can play your Ipod or whatever, whenever, OR plug in a solar battery charger if your car sits for a long time.

Great idea, where did you put it?

I just hard wired the V1 in my car. But this is still a good idea.

Where did you install the unit? I've been thinking of doing the same, and was planning on removing the quadrophonic sound knob on the other side of the ashtray.

I put it on the opposite side of the ashtray. Nothing there on my car but a blanking plug.

NAPA's also got some with a bracket you could hang below the dash.