I am inclined to swap my existing single DIN aftermarket stereo console with a latest one single DIN stereo console with functionalities like bluetooth and AUX connectivity. Current console is connected through ISO input plugs. With the current console I have faced no issues neither in central locking system nor in OBD-II functionality or anywhere else for that matter. 

 

I tried to search for stereo systems which directly take existing input so I don't have to go through any changes in the wiring and thus eliminating any electrical problems which may occur but I can't find any over the internet. Can you suggest any ? If not what are the other options I am looking at? How can these other options be executed with as little mess up with electrical system as possible?

7 hours ago, Burhan said:

I am inclined to swap my existing single DIN aftermarket stereo console with a latest one single DIN stereo console with functionalities like bluetooth and AUX connectivity. Current console is connected through ISO input plugs. With the current console I have faced no issues neither in central locking system nor in OBD-II functionality or anywhere else for that matter. 

 

I tried to search for stereo systems which directly take existing input so I don't have to go through any changes in the wiring and thus eliminating any electrical problems which may occur but I can't find any over the internet. Can you suggest any ? If not what are the other options I am looking at? How can these other options be executed with as little mess up with electrical system as possible?

You shouldn’t have any issues replacing the stereo, most common single din radios come with there own ISO harness. In all my years of changing radio in my MK1 Octavia’s (and my MK3f Polo’s for that matter), I’ve never had to go out and buy any adaptors or harnesses.

The only thing you have to do is swap the yellow and red wires around in order to keep radio settings.

This video may help.

 

/\ Dean is 90% correct. 

swap the wires to maintain a permanent live for radio memory, but also get an antenna amplifier to fit on the harness or you can have trouble with am/fm signal being very weak. the amp is built into the standard headunit, so the upgraded unit will need the inline booster. cost very little and easy fit. may also need an antenna plug adapter depending on the unit you get