the 7893 and 7894 do have a large power and ground wire, both of which need to be adressed... The power wire can be run to the driverside kickpanel fuse box (in most hondas) there is a tap there for constant power, which can be used to power the deck. Using a test light, test the open terminals just above the fuses to see exactly which one is not switched (always on).
For the ground wire, just find some good solid metal behind the dash where other accessories are already grounded, or drill a hole of your own and screw it in.

It is important not to use the stock wirring for these decks, as the deck draws signifigantly more than the stock wirring will handle. Both hampering the decks performance and probably constantly blowing fuses. Make sure these decks are wired properly.


The radio reception is very good, I live in a "fringe" area (up in the mountains) and I still get clear reception with a small antenna. Tuners specs will list the "strength" of the tuner, it will be a dbf number (ie: 13dbf) the lower the number, the better the reception... I believe the Alpine is 8 or 9dbf.