When I got home, I started having problems. The radio and navigation feature worked just fine, but this was because I was heading west and then south which allowed for the line of sight (LOS) between the truck antenna and satellite to be clear and unobstructed. “I made the purchase of the camper and drove about four hours to get back home. The following responses are sorted by year starting with the most recent trucks. If anybody does come up with a solution please reply back.Truck Camper Magazine polled its readers for SiriusXM solutions for RAM trucks. I’ll be contacting my dealer and BMW USA. Whatever eight series you have this certainly cost a significant amount of money and having this big of a design flaw is unacceptable. The constant dropping of the signal is driving me nuts. I have a 2021 M8 Gran Coupe and just googled this issue and found this post. That almost certainly is the source of the reception issue. I stumbled upon a schematic that seemed to show that the sat-radio antenna is buried in the M850's rear driver-side fender, since there is no shark fin antenna on this model. (To me, it always will be just "XM".) Anyway, I am noticing many more dropouts in sat-radio reception in the M850 than I've ever experienced with any other BMW model or any other car from any manufacturer. “Separately, I am a fan of (and former consultant for) XM satellite radio. Hoping there is a fix….hearing every other word of Howard Stern just isn't enough.įound this on a very old post from ‘redhot47fla’ I'm still not sure on how an amplifier can solve the problem though as satellite by nature is line of sight and if blocked (underpass, garage, tress, etc.) the only thing an amplifier can do is just amplify the "radio silence" from the drop out.Īnybody else having frequent drops in Satellite Radio Reception? I’ve found mind to be awful. In the end, the positioning of the sat-radio antenna inside the M850 and apparently buried near the rear driver-side wheel certainly seems like a questionable choice.Īgreed on the lack of Shark Fin (guessing an issue with the carbon fiber roof and obviously a no go with the convertibles) with the result being burying the antenna in the rear driver-side fender as the culprit. The shark fin on my wife's X5 worked much better in all situations (including inside the garage) prior to dropping the SiriusXM subscription for it (she only listens to a local FM station).Īn antenna amplifier will not help when you're deep inside a garage or if you sit under an overpass (there already is buffering capability that will maintain your signal for about four seconds under any obstruction, but that's a whole different conversation).Īn antenna amplifier theoretically could help you maintain a signal in more marginal conditions, such as passing under a row of trees (the dropout problem intensifies if the leaves are wet) or as you're driving through a canyon of tall buildings. Sad to hear that it is actually dropping out from trees as that just means a piss poor antenna location design. However, the next time I start up the car as I wait for the first kick down of the cold start RPMs (there are actually two but I'll never engage reverse until at least the first one is in play) I'll get drop outs from the SiriusXM station. For example if I park the car with SiriusXM as the source it's all fine as I press the start button to kill the engine, exit the car, etc. In other words I do not think an amplifier within the car to "boost" the signal from the antenna will help as at least in my experience the primary dropouts I get is when in my garage. However, it still is somewhat line-of-sight so even with a shark fin antenna sit too long under an overpass and you'll get complete drop out. SiriusXM is a different mode of that same technology and hence you can drive around but still get a signal. There may be a way to amplify the antenna signal - perhaps a top-notch auto sound tech can install something between the antenna and the head unit?įar from an expert but based on my prior experience with DBS satellite (aka DishNetwork or DirecTV) in my first step at cutting the cable cord over 25 years ago it is completely directional.
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