Could be a bad radio unit
I currently have my directed hd radio wired up to the +12V output of my carnetix P1900 power supply. It is set to FM modulation for audio output. The +19V output of the carnetix is tied to the input for my laptop. When the HD radio is not powered on, I have good reception when the Directed HD radio is disconnected from the carnetix. When the radio is connected and turned on, there is static and distortion on the stereo radio. I tried tying the hd radio return directly to the chassis of the car. I also tried soldering the RCA returns to chassis but it did not improve the static. Does anyone else have this problem and have any idea how I can fix this? Thanks!
Parts Collected [98.5%]
Installation & Fabrication [98%]
Total Completion Level [96.9 %]
This sounds like a very common problem which is solvable - but from your description I can't tell if you have tried it. Here a link to the solution: http://www.rush2112.net/phpBB3/viewtopic.php?f=11&t=774 It made a night and day difference for me.
2000 Audio A4 Avant
CARPC --- 95% Complete / -50% WAF (wife acceptance factor)
- Intel D525
- Xonar DS
- Mo-Co-So Case
- Xenarc 706TSA
- Directed HDRadio
- RideRunner w/ Modified Reborn Skin
- ASIO 2.1
- Windows 7