Redirect from subdomain to Teamspeak-Server (incl. port)

Hello all,

I run a Teamspeak 3 server at teamspeak.somehoster.com:10006 .

I have a subdomain ts.mydomain.com and I want to access the TS server through this subdomain without the need of a port (so a user only needs to enter ts.mydomain.com to access the TS server).

I can access A, AAAA, CNAme, SRV records (and more) for my subdomain.

Try #1:
I use a CNAME change: ts.mydomain.com redirects to teamspeak.somehoster.com . It works fine, but people have to use "ts.mydomain.com:10006" to access the server.

Try #2:
I used a SRV entry with the following entries:
SRV: _ts3._udp.ts 0 5 10006 teamspeak3.de.i3d.net.
The dot at the end of ".net." is added by the admin panel automatically.

It seems, #2 is not working. Wrong entries? What do I have to change please?