As I posted earlier I had the Bluetooth reader but didn't really like it. I used my phone as the monitor. I replaced it with the Scangauge 2. Like it much better.
Don't think it has an rca option but I never looked. I know they sell different cables. Might be worth a look
I don't like clutter on the dash either. I mounted the scangauge on the left lower corner of the instrument panel
Good luck
Jerry
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