So one thing that stands out on your 5505 side is that you do not have a transform set for phase 2 set.
Here is what you have for entry 20:
crypto map outside_map 20 match address 100
crypto map outside_map 20 set peer xx.xx.182.240
crypto map outside_map 20 set reverse-route
You need to add:
crypto map outside_map 20 set transform-set myset
If you do not actually need reverse route injection, don't set this, at least not at this point.
Remember, Hashing, Authentication, Encryption and Group MUST MATCH on both sides, so ensure that your transform set is the same on both and also ensure you have the same ISAKMP/IKEv1 Policy .
For the other side with newer code, you will need something like this (I prefer to use object-groups because it's just neater and easier to scale). At the moment you are missing the relevant NAT exemption. Actually pasting the entire config from both does make it a little difficult to pick up on anything else that may be missing so there may be some more things still to tweak, but take a look at this first:
object-group network LOCAL-NETWORK
network-object <your local network> <your local mask>
object-group network REMOTE-NETWORK
network-object <your remote network> <your remote mask>
access-list VPN permit ip object-group LOCAL-NETWORK object-group REMOTE-NETWORK
!here is the no-nat equivalent (Identity NAT) on newer ASA code:
nat (any,outside) source static LOCAL-NETWORK LOCAL-NETWORK destination static REMOTE-NETWORK REMOTE-NETWORK
!Phase 1 policies if needed
crypto ikev1 policy 1
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto map OUTSIDE_MAP 20 match address VPN
crypto map OUTSIDE_MAP 20 set peer ##.##.##.##
crypto map OUTSIDE_MAP 20 set transform-set ESP-3DES-SHA
crypto map OUTSIDE_MAP interface outside
crypto isakmp identity address
crypto ikev1 enable outside
tunnel-group ##.##.##.## type ipsec-l2l
tunnel-group ##.##.##.## ipsec-attributes
ikev1 pre-shared-key XXXXXX
See how you get on with this..
EDIT: Looking at your specific config, the two key things I see missing are:
5505: needs transform set as mentioned (remove reverse-route unless you need it)
crypto map outside_map 20 set transform-set myset
5510: Needs Identity NAT set:
nat (any,outside) source static 10.1.0.0 255.255.255.0 10.1.0.0 255.255.255.0 destination static 192.168.1.0 255.255.255.0 192.168.1.0 255.255.255.0
Use my code snippet as a guideline for newer config, but looks like that's the main bits missing in your specific case.
