Blaupunkt makes great sounding decks with some of the most reolutionary features on the market...they have 1 major problem. Many of their models do not have heat sinks for their internal amplifiers. This is not an issue in most German cars where the heater stuffis mounted away from the radio. In most other cars, that's not the case. So, now you have a heat source, the amplifier, without the tplical cooling fins and it's near really stuff, the heater. The only place for the het to go is through the front and through the internal workings to get there. I think this is less of an issue inthe upper mounting position in the dash (in place of all those gauges) then it is in the lower position. The speaker hole in the center of the dash should provide a fair bit of ventilation and the heat should exit through there, heat rises, right? The lower postion, there are all the vents and the tranny hump. Now, I'm not certain your model is lacking cooling fins but tlk to your installer or sales men about this.
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Portland, OR 1987 240 dl wagon (not so rusty anymore) 'rustbucket'