New Kenwood Stereo - loses memory?

[VEHoldenSS]

Hi guys,

I recently bought a new Kenwood stereo for my '91 Honda Accord. After wiring everything (Honda do not make this an easy job) found that the unit is not keeping memory. The unit had a "Power" (red) connector and a "Battery" (yellow) wire which it said to connect through the fuse box, however the car (diagram below) only had "12V POWER", which after talking to a friend whose an electrician we connected both the power and battery to this 12V power. Was this right or should we maybe connect the battery wire to "MEMORY"? Any help would be appreciated.



EDIT: Found another diagram, this one refers to the "MEMORY" as "+12V Battery wire". I guess I should have connected this up. Ah well, will fix it when I get time.

Question answered.

 

[Punknoodle]

Use a voltmeter. Find a constant 12V supply to use for the yellow and find a 12V supply that is switched by the accessory and connect the red to that. Done and done.

 

[VEHoldenSS]

Thanks. All fixed now. They could have used a better term than "Memory". Also this wire was a slightly different colour to what that sheet said, the other PDF file had this colour.

I actually want to get a volt meter but their not cheap. If I get an electrical apprenticeship I might need one anyway.

 

[mustangGT90210]

Yellow is the constant power to keep the memory, and red is the switched power so it turns on if you want, if I remember right from my install in my '91 f150

 

[Punknoodle]

I actually want to get a volt meter but their not cheap. If I get an electrical apprenticeship I might need one anyway.

Dude all you need for an indication of 12V in your car is a lamp with 2 leads on it, you can make it yourself! Or you can pick up little test lamps for next to nothing at auto stores. Even cheap multimeters don't go for that much.

There is also an advantage the lamp has over a voltmeter - the lamp puts load on it as well so if there is a weak connection you will notice it by the light flickering.

Glad you got it sorted.

 

[Ibonibo]

Dude all you need for an indication of 12V in your car is a lamp with 2 leads on it, you can make it yourself! Or you can pick up little test lamps for next to nothing at auto stores. Even cheap multimeters don't go for that much.

There is also an advantage the lamp has over a voltmeter - the lamp puts load on it as well so if there is a weak connection you will notice it by the light flickering.

Glad you got it sorted.

That.

If you need to rewire a radio because no adapter, then a AA batterie will sort out the speakers (L/R - F/R) and a little 12v lamp of your car will help you find the power wires.

No need for an expensive voltmeter for a radio rofl

 

[VEHoldenSS]

Dude all you need for an indication of 12V in your car is a lamp with 2 leads on it, you can make it yourself! Or you can pick up little test lamps for next to nothing at auto stores. Even cheap multimeters don't go for that much.

There is also an advantage the lamp has over a voltmeter - the lamp puts load on it as well so if there is a weak connection you will notice it by the light flickering.

Glad you got it sorted.

You would also have to connect the 2nd lead on the lamp (-) to ground right?
I am into this electronics business but I'm still teaching myself.

 

[Ibonibo]

ground on the car can be everything on the bodyshell, just need to find a metal spot to put the ground on

Even when you need to start your car via cables (battery empty) it is recommanded to use a ground on the car rather then the - on the battery

 

[VEHoldenSS]

ground on the car can be everything on the bodyshell, just need to find a metal spot to put the ground on

Even when you need to start your car via cables (battery empty) it is recommanded to use a ground on the car rather then the - on the battery

Ah, that makes sense. I thought of the ground idea from computer/home electronics, wiring LED's and fans etc.