I installed an aftermarket Atoto Android stereo and the FM reception is poor compared to the stock head unit. I thought I read here to be sure to connect the power antenna cable on the metra harness to the stereos power antenna lead. I did that before I installed,but reception is still poor. Did I miss something?
I put an Eonon in mine, and it's the same, till I went with a 4" Antenna, then
it got worse. I don't listen to the radio anyway.... It was just never that good
to begin with...
My metra antenna adapter has no 12V power lead. These Android units
are made in China, so, you get what you pay for. Also, make sure the
tuner is set for USA, mine has two options for USA. One ending in 108.7,
one ending in 107.5 for some reason...
FM reception was always bad on my Shaker500 unit.... My VW Jetta has no antenna
mast, and the reception is WAY better.
Anyhow, unless your antenna adapter has a built in booster, there is nowhere to
connect the 12V antenna output from the radio, to the antenna adapter. IF there
is a wire hanging off the adapter, more then likely, it's a ground.