Erisin stereo radio reception

[Inderpal]

Hello peeps

Need advice got a Mercedes 2009 CLc. I had a erisin stereo fitted last week really impressed with it. Only issue is the radio reception is terrible. Ive spoken to the guy who fitted it for me he said everything is connected correctly.

Anyone have a similar issue

The stereo is erisin ES8189C

 

[Flyinspanner]

Contact Erisin?

is it all radio bands FM/AM & DAB, check if your car has an antenna amplifier, check the fuse for it.

 

[AnthonyUK]

I fitted one for a friend that required a feed from the unit to power the antenna amp. It was a small supplied cable that needed fitting. After that the radio was great.

 

[Blobcat]

I fitted one for a friend that required a feed from the unit to power the antenna amp. It was a small supplied cable that needed fitting. After that the radio was great.

Good call, the Kendwood system I fitted in the VeeDubs didn’t have the supply for the antenna amp by design, so I had to add a feed.

 

[Inderpal]

Interesting I thought the guy fitting it would hsve known this! Anthony what cable is it? Sorry I'm new to all this!

 

[M80]

The model specific Erisin should be plug and play.
The output from the HU to the amp will be the blue wire.
To confirm find the amp and check there is 12 volts at that, in case the blue feed isn't carried through at the connector.
To check the feed onward to the amp you really need the original HU.

 

[AnthonyUK]

Interesting I thought the guy fitting it would hsve known this! Anthony what cable is it? Sorry I'm new to all this!

In the image below which is for a W245 B class, it is number 29/30 which should be connected to number 6.

 

[M80]

The ISO connector should pass the amp feed through to the amp.
Sometimes there are more than 1 ISO in the kit, but where the unit is model specific it shouldn't need more than the 1, but early / later models might vary.

Even though the ISO should enable the easy installation these more often have the additional outputs, that duplicate some in the ISO, as per the link above.

As said to confirm the HU output is passing through the ISO really re installation of the original HU is needed, to identify the amp feed (live when unit on radio) in the car loom, and then confirm the correct wire in the car loom is still getting that from the Erisin HU.

 

[M80]

Another thought.
These units can often have more than 1 antenna out. This would then be adapted to Fakra for the car.

Be sure the radio is connected to radio antenna on the HU, not GPs or even wifi.

 

[Inderpal]

Thank you people I will pass this all on to the fitter when I go back to him
This erisin head unit replaced a after market basic kenwood stereo which had perfect radio reception

This is what I got with my erisin


-
- 1*Din to ISO Radio Antenna Adapter
- 1*Din to Fakra Radio Antenna Adapter
- 1*External microphone Cable
- 1*USB OTG Cable
- 1*GPS Antenna
- 1*WiFi Antenna

This is the back of the unit

 

[AnthonyUK]

Thank you people I will pass this all on to the fitter when I go back to him
This erisin head unit replaced a after market basic kenwood stereo which had perfect radio reception

This is what I got with my erisin


-
- 1*Din to ISO Radio Antenna Adapter
- 1*Din to Fakra Radio Antenna Adapter
- 1*External microphone Cable
- 1*USB OTG Cable
- 1*GPS Antenna
- 1*WiFi Antenna

This is the back of the unit

 

[Inderpal]

Thank you anothony. From the diagram of my hc what would I need to do???

 

[AnthonyUK]

Thank you anothony. From the diagram of my hc what would I need to do???

Do you know type of aerial amp you have? I think it is one that needs a signal from the head unit.
As the quadlock loom is not shown I can only guess but I think cable 1 would need connecting to PIN 13 in the main quadlock to power the amp.

Obviously verify this before attempting it

 

[Inderpal]

Come to the installer he can't figure out why there is no radio reception! This is a pic of my cars attenta

 

[mattkh]

Do you have an aerial on the roof of the car?

 

[sonic]

Come to the installer he can't figure out why there is no radio reception! This is a pic of my cars attenta

I suspect you car is too old for a DAB antenna to have been built in the car, so do your testing on VHF.
Pull the short antenna cable out of the back of the radio, then put a wire into the centre connector about a meter long. That will test the radio receiver.

 

[Inderpal]

No aerial on the roof. Wierd thing is when the installer reconnected all the wires rasio worked fine. Then 30 mins later stopped no reception!

 

[sonic]

No aerial on the roof. Wierd thing is when the installer reconnected all the wires rasio worked fine. Then 30 mins later stopped no reception!

If its not an external antenna they its built into the rear screen, & it will have an antenna amp. Loads have failed on this forum.
But check the radio first with a wire in the antenna out socket.