Re: Adding a Garmin to a 1984 MBZ 240D
- From: Loony <Loony@xxxxxxxxxxx>
- Date: Wed, 01 Feb 2012 10:59:38 +0000
On 31/01/2012 18:02, Loony wrote:
On 31/01/2012 13:40, trader4@xxxxxxxxxxxxx wrote:On Jan 31, 5:33 am, Loony<Lo...@xxxxxxxxxxx> wrote:On 31/01/2012 09:08, Roland Franzius wrote:
Am 29.01.2012 19:41, schrieb Loony:Hello again Experts,
Many years ago just after I bought that MBZ I decided to dump the
cigarette lighter and I wasn't sorry about that.
Now, that old car is still running extremely well, and I am now trying
to connect my Garmin to the empty cigarette lighter spot.
I was able to pull out the complete cigarette lighter and was
surprised
that I could see no electrical connection. Years ago I installed a
radio
just above that and I am not sure if I hid the lighter wire in the
radio
compartment.
I put the complete cigarette lighter back in its place and then I
pushed
the Garmin GTM26 down into it. I looked for a connection to test
whether
it was live but then I ran out of time. I can't even remember how I
installed the radio. I guess I could still pull buttons until I get
the
radio out.
Any suggestions appreciated.
Originally the radio is connected to the cigarette lighter with a red
wire in the middle console fused with a glas cylinder fuse.
The lighter is connected with I+II of the ignition key. Radio is off in
key position 0.
Most W123 cars use instead an extra wire to battery plus for radio use
independent of ignition.
Thank you Roland.
I managed to get the radio pulled out and I was shocked at the numbers
of wires. The ash tray has no electric connection now, so I need to find
and install the part that will provide the "juice" to the Garmin.
Will look for that red wire and fuse.- Hide quoted text -
- Show quoted text -
I added extra cigarette lighter type sockets on both sides
of the tranny hump just below the radio area in my 300SD.
They are available at autoparts supply houses. One
reason I did that was a plug from something would not
clear the ashtray opening. Having extras is convenient
for charging cell phones, iPod, etc.
That is interesting Trader4.
One connection is all I need - the one for the Garmin.
I pulled the radio out and looked for loose wires. I found 3 of them.
One had a 1/4" wide slot for some spade connection. According to
page 82-909 of the MBZ Manuals, the spade is a connection for the
radio. But the radio is working already without it.
The other two unused grey wires have the same size sockets (about 3mm
diameter) at the ends. Both ends were covered with rubber caps. One of
the contacts has a red color and the other has a cream color.
Looking forward in the seat and up under the ash tray, on the left side,
there are three holes with possible contacts but none of the three
possible contacts can be used.
When I have some more time I'll try my multimeter on the contacts to
try to find a suitable connection for the cigar + Garmin connection.
Suggestions please.
THX.
Second thought: The spade connection is very likely to be negative, since the car body is positive. I could trim that contact to a spade like shape and it may fit one of the 2 slots just under where the cigar lighter was, or my Garmin plug, is now.
.
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