Background: ----------- Over the years, I have repaired, replaced or upgraded the audio systems in countless cars, including several of my (so far) five Volvos. From this, I was able to gleen insight into Volvo's system approach and their different audio designs. This is based on my two different S6...

I would assume it must be a short. If it were a stuck relay that would simply deliver power when on, etc. If the radio went into CODE previously, it lost power. All things point to a short in the cable feeding power to the radio itself. The only like locations for such are where they go through meta...

Again, I am doing this from memory.....and a montage of my experience with my HU-650 and my HU-615 and my other-year S40, so I might be a little foggy on my details. OK,l so the HU-615 has two DIN connectors. One is a 6-pin and thats for the pre-amp outputs. The other is an 8-pin and thats for exter...

--- What to look for when evaluating a used Volvo --- People often come to MVS for advice when considering the purchase of a used Volvo: "Is this a good deal?" "Should I buy this car?" "What do you think of this...?" Essentially, everyone is asking the same question: &q...

Reaffirming what's already been stated: I have spent some of my engineering time specifying and designing products which utilize rechargeable batteries. The batteries have only three characteristics that essentially matter: 1) Physical size, dimensions, location and type of connection 2) Nominal vol...