There must be some way to tune my 2002 BMW 525 radio to a particular FM frequency but I can't figure out how so my GPS won't work.
My Garmin GPS nuvi transmit on any FM frequency I tell it to. The instructions say find an unused frequency and tune the radio to that frequency. OK. But how do you tune a BMW automobile radio to an unused frequency?
On a friend's car in a parking lot with everything turned off, I can tune his American car radio to any FM frequency I like ...... for example to
100.1 FM. Then I can set the Garmin nuvi to speak on 100.1. There's a whole lot of hissing and other sounds but at least I can hear the music and driving instructions through the American car radio.However, on my Beemer, there are only two settings. One will only find "working" stations so it skips right past the weak GPS FM transmitter signal. If I press the little BMW "m" on the stock radio, I can then press the arrow buttons to go back and forth a bit, but still, there is no way to get to 100.1 which is the cleanest empty station in my area. The dastardly BMW radio skips to whatever station it wants to when you press the arrow.
I'm frustrated with the BMW radio lack of tuning ability.
How do we tune a BMW automobile radio to an unused FM frequency like 100.1?