Comment Re:Reliability needs (Score 2) 455
A lot of companies used a small HD inside to store system info and nav data (even in the after market units) and used the data from the DVD to update the firmware and maps on the hard drive.
Of course there were also those that ran off of the DVD and RAM memory (one such unit is my way old by this point Pioneer AVIC-N3 that's still chugging away). Others like some of the Eclipse and higher end Pioneer units back in the mid 2000's stored the info on a hard drive for faster access and no need to mess with discs. I think even Alpine had a HD based add-on nav unit around the same point, but don't quote me on that I forget. But seeing that both Eclipse (Fujitsu 10) and Pioneer are large OEM supplies.. as well as Alpine but like I said I can't remember if they did offer one or not after market... if there were an increasing amount of hard drive based setups as OEM in the mid 2000's