I think you are giving car thieves too much credit. Simple 'smash and grab' thieves will smash a window, grab a bag etc and run away, expecting an alarm to go off anyway. They wont look for stickers, or if they do they wont care much.
More sophisticated car thieves who are able steal the car itself already know which security systems Honda fit. They wont be fooled by additional stickers.
If you are concerned the car may be stolen , buy a "Faraday" bag. These stop your keys transmitting signals that can be detected by nearby criminals using special computer equipment .They can then clone' the signal to open and start your car. They could detect these signals by standing just outside your home, hotel room, restaurant table etc. The Jazz is not a favourite for these criminals, but you never know.
Here is an example. You may find something locally
https://www.ebay.co.uk/itm/183552105225?hash=item2abc8edb09:g:EiYAAOSwDPNb-ULi