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Discussion Starter · #1 ·
My 99 V70 XC has the SC816 stock radio/cassette/single CD player. I'm upgrading to a double DIN Pioneer head unit. The problem is the old unit has 2 antenna leads, one with a slightly smaller plug than the other. I assume one is for the antenna on one side of the rear hatch glass and the other comes from the passenger side in-glass antenna. If I only use one, won't my reception suffer? Is there an adapter to combine the two? Or can I cut, splice and solder the two together? I'm surprised not to see any posts on this. THANKS for the help!
 

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The FM waveband uses a diversity system consisting of two antennas. One of the diversity system antennas is integrated in the rear windshield heating loops, the other is in the rear bumper.
Only cars with factory-installed radios have an antenna amplifier for the diversity system. After market accessory radios may require installation of an after market accessory antenna amplifier for the diversity system for interference free FM reception.
If tinted film is applied to the rear windshield, check the antenna wires for damage and adhesion.
You may wish to call your local dealer as there is a factory bulletin about antennas.
 

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Discussion Starter · #3 ·
Radio Reception Problem solved!!

:)GOT IT FIXED!! Well I solved the poor radio reception problem. Turns out that I did not connect what I thought was the blue wire with white stripe to the solid blue wire on the harness. I assumed that was for the power antenna (to make it go up and down) and since I didn't have one, I didn't need to connect thtose wires together. Once I did, the reception improved as if a switch was thrown. Problem solved. Hope this helps others. By the way, I'm still going to see if reception improves further by getting a y cable and connecting both antenna leads into one.:)
 
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