but not in an aftermarket stereo... though I suspect newer ones may just hold presets...
A neat idea, but probably not worth it when it comes to my benz, I prefer something a little better, hence the reason I would stay away formt he cigarette lighter jump starter, do I want that kind of juice goign through my fuse box? nope.
I would rather use a jumper battery pack that clips onto the battery, or a good ol jump start like usual.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.