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Is it wise to disconnect the battery when fitting both a front and rear dashcam on the G20? I'm due to be installing a Nextbase 522 bundle in the next few days using power from the ODB port.
I did want to purchase the BMW Advanced Eye 3 pro kit but the local dealer would not supply this saying it had to be fitted by themselves. Not sure if its worth the extra £100 for this either as I got the Nextbase bundle (with memory card) and ODB hard wire kit for £225.
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